Shadow Conditions of Earth Satellites - Kozai Orbit |
| Description: | Accurate predictions of shadow conditions for any type of satellite orbit can be determined by using a combination of one-dimensional minimization and root finding. The algorithm used here searches for minimum values of the angle between the shadow axis and the satellite’s position vector as a function of time. If this angle lies within the penumbra angle, the algorithm uses Brent's root-finding method to look backward and forward relative to this minimum time to find entrance and exit conditions. This method can also be used to determine entrance and exit relative to the umbra, penumbra and cylindrical shadows. |
| Filename: | shadow2.zip |
| ID: | 9487 |
| Author: | C. Deagle, Jr. |
| Downloaded file size: | 377,537 bytes |
| Size on calculator: | 85 KB |
| Platforms: | Prime |
| User rating: | Not yet rated (you must be logged in to vote) |
| Primary category: | Science |
| Languages: | ENG |
| File date: | 2022-11-09 12:48:55 |
| Creation date: | 2022-11-09 |
| Source code: | Included |
| Download count: | 132 |
| Version history: | 2023-05-29: Added to site
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| Archive contents: | Length Date Time Name
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386311 2012-11-13 07:24 shadow.pdf
86768 2022-11-09 06:02 shadow2.hpprgm
3931 2022-11-09 13:48 shadow2.html
41222 2022-11-09 06:43 shadow2.txt
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518232 4 files |
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